package com.zy.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;


@Service
public class PaymentService {
    /**
     * 正常访问ok
     * @param id
     * @return
     */
    public String paymentInfo_ok(Integer id){
        return "线程池："+Thread.currentThread().getName()+"  paymentInfo_ok  "+id+"\t"+"O(∩_∩)O哈哈~";
    }

    /**
     * 异常
     * @param id
     * @return
     */

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "3000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timeNumber =5;
        try{
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+"  paymentInfo_TimeOut  "+id+"\t"+"O(∩_∩)O哈哈~"+"     耗时(秒):  "+timeNumber;
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+"  系统繁忙请重试"+id+"\t"+"痛苦";

    }



    //+++++++++++服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启熔断断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
    if (id<0){
        throw new RuntimeException("id不能为负数");
    }
    String serialNumber= IdUtil.simpleUUID();
    return Thread.currentThread().getName()+"\t"+"调用成功 ，流水号： "+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id")Integer id){
        return "id不能为负数  id: "+id;
    }

}
